aid β Aid is money, equipment, or services that are provided for people, countries, or organizations who need them but cannot provide them for themselves.
assist β If you assist someone, you help them to do a job or task by doing part of the work for them.
centre β A centre is a building where people have meetings, take part in a particular activity, or get help of some kind.
center β a point equally distant from all points on the circumference of a circle or surface of a sphere
detach β If you detach one thing from another that it is fixed to, you remove it. If one thing detaches from another, it becomes separated from it.
disjoin β to undo or prevent the junction or union of; disunite; separate.
free β enjoying personal rights or liberty, as a person who is not in slavery: a land of free people.
help β to give or provide what is necessary to accomplish a task or satisfy a need; contribute strength or means to; render assistance to; cooperate effectively with; aid; assist: He planned to help me with my work. Let me help you with those packages.
let go β to move or proceed, especially to or from something: They're going by bus.
liberate β to set free, as from imprisonment or bondage.
loose β free or released from fastening or attachment: a loose end.
loosen β to unfasten or undo, as a bond or fetter.
lose β to come to be without (something in one's possession or care), through accident, theft, etc., so that there is little or no prospect of recovery: I'm sure I've merely misplaced my hat, not lost it.
open β not closed or barred at the time, as a doorway by a door, a window by a sash, or a gateway by a gate: to leave the windows open at night.